The victory at the Battle of Leipzig in 1813 marked the beginning of the decline of Napoleon's empire. This battle, also known as the Battle of Nations, involved a coalition of Russia, Prussia, Austria, and Sweden defeating Napoleon's forces. The loss weakened his control over Europe and sparked a series of subsequent defeats, culminating in his abdication in 1814. This marked a turning point where the coalition powers began to push back against French dominance, leading to a restoration of monarchies and a reshaping of Europe's political landscape in the years that followed.